| 摘要 |
A method of stretching a pelt on a pelt board which comprises the providing of the pelt and the pelt board. The pelt has a substantially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose end, a rear end and a pair of front leg cavities. The pelt board defines a top end, a circumferential wall for facing the inwardly oriented leather side of the pelt and a base end located opposite the top end. The method further comprises the providing of a stretching apparatus comprising a holding device, a fixating device, a length measuring device, and a controllable actuator having a velocity controller and a force detector holding the base end, positioning the pelt on the pelt board, contacting the fixating device with the pelt, operating the controllable actuator at a specific speed controlled by the velocity controller, measuring the length of the pelt by means of the length measuring device at the time a specific force constituting an empirically determined safe force has been detected and registering the length and the specific force and/or the specific force gradient as a first set of coherent data. |
